Mindray uMEC10, Operator'S Manual

Page: 213 / 288

25-7
5. Open the relief valve to vent standard CO
2
and make sure that there is an excess gas
flow through the T-shape connector to air.
6. Check the realtime CO
2
value is within 6.0±0.3% in the [ Calibrate CO2 ] menu.
25.6.3 Calibrating CO
2
For the CO
2
module, a calibration is needed every year or when the measured values have a
great deviation. For maintream CO
2
module, no calibration is needed. Calibration for the CO
2
module can be performed only when the module enters the full accuracy mode.
WARNING
z
Connect an exhaust tube to the gas outlet connector of the monitor to remove the
calibration gases to a scavenging system.
Tools required:
„
A steel gas cylinder with 6±0.05% CO
2
and balance gas N
2
„
T-shape connector
„
Tubing
Follow this procedure to perform a calibration:
1. Make sure that the CO
2
module has been warmed up or started up.
2. Check the airway for leakage and perform a leakage test as well to make sure the airway
has no leakage.
3. Select [
Main Menu
] [
Maintenance >>
] [
User Maintenance
>>] enter the
required password
ė
[ Module Maintenance >> ] [ Maintain CO
2
>> ] [ Calibrate
CO
2
>>
].
4. In the [ Calibrate CO
2
] menu, select [ Zero ].
5. After the zero calibration is finished successfully, connect the equipment as follows: